Powerful toy blower

ABSTRACT

The embodiment of the utility model discloses a powerful toy blower, comprising a housing, a fan and a motor. Application of Bernoulli&#39;s Principle enhances the efficiency of air flow. The housing adopts centrifugal design, with which the fan shall easily rotate at high speeds and air resistance to the fan will be much lower, leading to higher fan capacity. On the housing shell near a motor fixing socket, two air inlets are disposed for efficient heat dissipation and sufficient air flow so that the service life of the blower can be extended. The fan is shaped based on geometric modeling. The fan blades are tangent to the annular hub and perpendicular to the periphery of the rotating plate. Also, the edge of each blade at the periphery is vertical to the rotating plate, so as to reduce air leakage and avoid air backflow. A motor mounting socket is disposed within the center top of the rotating plate, which not only enhances operation stability and avoid unnecessary vibration but also reduces the size of the housing and the cost of production.

TECHNICAL FIELD OF THE INVENTION

The utility model relates to the field of air blower, in particular to a powerful toy blower.

BACKGROUND OF THE INVENTION

In the current market, the design of toy blower is without the application of centrifugal design and has only a circular fan chamber for the fan, with the center of the annular hub in line with the center of the fan chamber. As this kind of design is not of eccentric structure, the volume of air flow is small and the fan capacity is weak.

In some cases, the motor is not disposed properly near the center of the housing, resulting in unstable operation and unnecessary vibration. Also, there is not yet a mounting socket inside the housing for the motor, which is used to be disposed outside the housing, resulting in larger size of the entire blower. In other cases, the air inlets for the motor fixing socket are too small for air flow; they cannot properly exhaust waste heat as well as provide air needed for the fan, which will in turn shorten the service life of motor. Further, there has not yet been a design of toy blower that the fan blades are tangent to the annular hub and that the edges of fan blades are vertical to the periphery of the rotating plate. This will cause problems of more resistance to fan blades, smaller air volume, backflow of air and lower fan capacity. There has still not yet been a design that places the motor in conjunction with the fan blades. A separate motor chamber will have to settle for bulkier size of blower and higher cost of production.

SUMMARY

The embodiment of the utility model is to provide a powerful toy blower which has high fan capacity, large air volume, ideal heat dissipation and long service life.

A powerful toy blower comprises a housing, a fan and a motor. The housing adopts a centrifugal design, comprising an upper and a lower half shells. Inside the housing are a fan chamber and an air flow channel. The fan is disposed in the said fan chamber. A motor fixing socket is located on the said upper half shell, corresponding to the motor mounting socket on top of the rotating plate of the fan. The motor is disposed within the motor mounting socket through the motor fixing socket.

The air flow channel is of straight line.

The fan consists of an annular hub, a rotating plate and fan blades. Each piece of the fan blades is tangent to the said annular hub and perpendicular to the periphery of the rotating plate. Also, the edge of each fan blade at the periphery of the rotating plate is vertical to the rotating plate. A motor mounting socket is disposed within the center top of the said rotating plate.

The said motor fixing socket has two air inlets, facilitating heat dissipation and air flow.

The embodiment of the utility model has the following advantages:

The embodiment of the utility model, a powerful toy blower, has a centrifugal design applying Bernoulli's Principle, in which the center of the annular hub is away from the center of the fan chamber in the housing. This design effectively enhances the volume of air flow as well as fan capacity. The motor is disposed in the motor mounting socket through the motor fixing socket on the upper shell. This structure ensures stable operation as the motor runs at high speeds. There are two air inlets at the motor fixing socket to acquire more air flow. As the fan rotates at high speeds, the air flowing in helps to remove the waste heat produced by the motor, keeping the motor within permissible operating temperature limits and extending its service life.

In addition to the centrifugal design, the fan is shaped based on geometric modeling, which ensures smoother air flow, smaller resistance to the fan blades and higher fan capacity as well as avoid backflow of air.

The space near the center top of the fan blades is utilized as the motor mounting socket to accommodate the motor. This specific design will save space, reducing the overall size of the blower and the cost of production.

In sum, the embodiment of the utility model provides a powerful toy blower that has enhanced structure with higher fan capacity and extends service life of motor.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded view of the embodiment of the utility model;

FIG. 2 is a cross sectional view of the housing of the utility model;

FIG. 3.1 is a top view of the fan blades of the utility model;

FIG. 3.2 is a top perspective view of the fan blades of the utility model;

FIG. 3.3 is a top perspective view of the fan blades installed in the housing of the utility model.

DETAILED DESCRIPTION OF EMBODIMENTS

The embodiment of the utility model, a powerful toy blower as shown on FIG. 1, comprises three basic parts, including a housing 1 that has an air outlet, a motor 2 and a fan 3 that is disposed in the housing. The housing 1 is composed of an upper and a lower half shells. Inside the housing 1 are a fan chamber and an air flow channel 11. The fan 3 is disposed in the said fan chamber with a centrifugal design that the center of the annular hub of the fan 3 is away from the center of the fan chamber in the housing 1.

On the upper shell 4 is there a motor fixing socket 5, with two air inlets 6 located at opposite sides of the said motor fixing socket 5. A motor mounting socket 7 is disposed within the center top of the fan 3. The motor 2 is to be installed in the motor mounting socket 7 through the motor fixing socket 5. As all the parts put together and the power turned on, the motor 2 drives the fan 3 to rotate at high speeds, producing strong air flow.

Referring to FIG. 2, the housing 1 adopts centrifugal design that applies Bernoulli's Principle (air pressure gets smaller as air flows faster) so as to enhance air flow. The fan chamber of the housing 1 is not constructed circular but rather spiral. The center of the upper right arc of the shell (2-1 on FIG. 2) is set to be two milimeter to the left of the center of the fan 3 (2-3 on FIG. 2). The center of the lower half arc of the shell (2-2 on FIG. 2) is set to be two millimeter to the right of the center of the fan 3 (2-3 on FIG. 2). This geometric design leaves unequal distances between the fan and the inner wall of the housing 1 (2-4 on FIG. 2). The said design creates centrifugal force for air flow and reduces resistance to the rotating fan blades. As the fan 3 starts rotating, air flows smoothly along the inner wall of the housing 1 and goes into the air flow channel 11, consequently leading to larger air volume and higher fan capacity.

The air flow channel 11 is designed to be a straight line (2-5, 2-6 on FIG. 2), allowing air to flow smoothly and fast to the air outlet.

Turning now to FIGS. 3.1 through 3.3, the geometric design of the fan 3 is shown. The fan 3 comprises an annular hub 8, fan blades 9 and a rotating plate 10. Each of the fan blades 9 is tangent to the annular hub 8 (3-1 on FIG. 3.1). The fan blades 9 at the periphery is vertical to the rotating plate 10 (3-2 on FIG. 3.2). These designs effectively control the direction of air flow and avoid air backflow. Further, the edge of the fan blades 9 and the periphery of the rotating plate 10 are perpendicular to each other (3-3 on FIG. 3.3), which effectively reduces air leakage and resistance to the fan blades 9, contributing to higher fan capacity.

The space on top of the annular hub 8 is utilized as the motor mounting socket 7 to accommodate the motor 2 (3-4, 3-5 on FIG. 3.2 and FIG. 3.3). This design saves space, reducing the overall size of blower and the cost of production.

The motor 2 is disposed in the motor mounting socket 7 through the motor fixing socket 5 on the upper shell of housing. This structure ensures stable operation as the motor 2 runs at high speeds. Two air inlets 6 are disposed at the motor fixing socket 5. As the fan rotates at high speeds, the air flowing in from the air inlets 6 adds air volume and helps to remove the waste heat produced by the motor 2, keeping the motor within permissible operating temperature limits and extending its service life.

As the power turned on, the motor 2 drives the fan 3 to rotate at high speeds, producing large air volume and high fan capacity.

The above reveals only a preferred embodiment of the utility model and, of course, cannot be used to limit the scope of the utility model, so that the other transformation of the utility model still belongs to the scope of the utility model. 

1. A powerful toy blower comprises a housing having an air outlet, a fan disposed in the housing, and a motor. The housing adopts a centrifugal design, comprising an upper and a lower half shells. Inside the housing are a fan chamber and an air flow channel. The fan is disposed in the said fan chamber. A motor fixing socket is located on the said upper half shell, corresponding to the motor mounting socket on the rotating plate of the fan. The motor is disposed within the motor mounting socket through the motor fixing socket.
 2. Powerful toy blower according to claim 1, characterized by that the air flow channel is of straight line.
 3. Powerful toy blower according to claim 1, characterized by that: the fan comprises an annular hub, a rotating plate and fan blades. The fan blades are tangent to the annular hub and perpendicular to the periphery of the rotating plate. Also, the edge of each blade at the periphery is vertical to the rotating plate. A motor mounting socket is disposed within the center top of the rotating plate.
 4. Powerful toy blower according to claim 1, wherein the said motor fixing socket has two air inlets, facilitating heat dissipation and air flow. 